HTML5 in the Web browser: HTML5 forms

“The newest specs for HTML forms give programmers more control
over data input and validation, while offloading much of the work
to the browsers

“The changes and enhancements to the form tags are some of the
most extensive amendments to the HTML5 standard, offering a wide
variety of options that once required add-on libraries and a fair
amount of tweaking. All of the hard work that went into building
self-checking widgets and the libraries that ensure the data is of
the correct format is now being poured into the browser itself. The
libraries won’t be necessary — in theory — because the work will
be done seamlessly by all browsers that follow the standard. In
practice, we’ll probably continue to use small libraries that
smooth over slight inconsistencies.”

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